Tool for rolling and beading boiler tubes



May 27, 1924. 1,495,693

J. P. HUGHES Y TooL FOR ROLLING AND BEADING BOILER' TUBES Filed March 24, 1923 z sheets-sneer l f7 3.5- HILI il 34 L ,lhy u nl, I

` May 27, 1924.

J. P. HUGHES TOOL FOR ROLLING AND BEA'DING BOILER TUBES 2 Sheets-hee. 2

Filed March 24; 1925 @noem/tov M www 4 8 M W y i..

Patented May 27, 1924:

JOI-IN I. HUG-HES, 0F TIPTON, INDIANA.

TOOL FOR ROLLING AND READING BOILEB. TUBES.

Application filed March 24, 1923. Serial No. 627,396.

be manipulated readily, can be easily placed in and removed from position, and can be accurately adjusted to properly expand the l end of the engaged tube and produce the nec# essary bead.

TVith the foregoing and other objects in view which will appear as the description proceeds the invention resides in the combination of parts and certain novel details of construction hereinafter more fully de scribed and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of the parts without departing from the spirit of the invention as claimed.

In the accompanying drawings theV pre ferred form of the invention has been shown.

In said drawings. A

Figure 1 is an elevation of the tool applied to a flue.

Fig. 2 is a central longitudinal section therethrough, the mandrel being shown in elevation. f

Fig. 3 is a section on line 3 3 Fig. 1.` j

Fig. 4 is a section on line 4 4 2.

Fig. 5 is a section on line 5 5 Fig. 2.

Referring to the figures 'by characters of reference 1 designates a substantially cylindrical cage in the periphery of which are formed longitudinal slots 2 the side walls of which converge outwardly so as to limit the outward movement of rollers 3 that are seated in the slots. See Fig. 4. The cage is formed at its inner end with an annular enlargement 4 and slots 5 are provided in the enlargement and extend inwardly, those ends of the slots 5 nearest the free end of the cage being reduced and being overhung by the peripheral portion of the cage. Topshaped rollers 6 are insertible into the slots and arey adapted to be retained therein by the overhanigin portions of the cage and by a sleeve or ban 7 secured about the enlarged portion of the cage and overhang-ing the slots 5. These slots project between the slots 2 and all of the slots open into a central longitudinal passage 8. Thus the rollers can be placed in the passagel and then Jforced. outwardly into the respective slots provided Jfor them.

The cage 1 has a tubular extension 9 at its innerv end', this extension being exteriorly screw threaded. A mandrel 10 is rotatably mounted in the extension 9, an elongated tapered end portion extendingthrough and beyond the cage as shown at 11 and serving to hold the "rollers 3 andv 6 in their slots. The movement of the mandrel in one direction. is limited by an annular shoulder 12 on the mandrel adapted to engage a shoulder 13 formed within the cage 1. A collar 14 is formed on the mandrel near its other end and bears against the end of the extension 9. A sleeve 15 extends around the collar 14 and screws onto the end of theextension 9. this sleeve being provided with an interior shoulder 16'adapted to extend back of the collar 14 so as to hold the mandrel coupled to the extension 9. That end ot the mandred adjacent sleeve 15 is made angular asat 17 so that it can be turnedI readily by means of a wrench. i i

Mounted for rotation'on the sleeve 15 is a tubular jacket 18 one end portion of which is reduced in internalv diameter and is interiorly .screw'threaded, as shownV at 19, thus to engage the extension 9 between the cage 1 and sleeve 15. This jacket is slotted longitudinally as at 20 and seated within eac-h slot is" a latch 21 in the-form ot an elongated stripone end ofwhich projects into a slot 22 formed in one end of the jacket while the other end of each strip extends outwardly from the slot to provide a grip or handle 23. A spring 24 is interposed between each strip 21 and a portion of the jacket so as to hold the strip with the grip portion normally pressed outwardly as shown in Fig. 2. Each of the latches or strips 21 has a. head 25 provided with a shoulder 26, the outer face of the head being inclined or obliquely disposed as shown at 27. A tubular extension 28 projects radially from the jacket 18 and has a spring pressed bolt 29 slidably mounted therein. A cross pin 30 is carried by the outer end of the bolt and is adapted to rest within a cross screw 31 in the outer end of the extension 28 so as to allow the bolt 29 to proj ect the maximum distance into the jacket 18. By pullingl the bolt outwardly and turning it, the pin 80 can be caused to rest against the end ot extension 28 and with the bolt retracted. Radial Openings 32 are provided within the extension 9 and any one of these is adapted to receive bolt 29 when the bolt is in its innermost position. With the parts thus engaged the jacket 18 cannot rotate on the extension 9.

In using this apparatus, for example, to roll and bead a tube T within a flue sheet F, the tool is inserted, tor example, through the throat sheet or door sheet D of a boiler and thence into the end of the tube T. The heads 25 of the latches will pass through the sheet D and spring outwardly into engagement therewith as shown in Fig. 2. Thus the tool is prevented trom withdrawal land the end of the tool will be held within the tube T. The jacket 18 can now be rotated by means ot a ratchet lever, not shown, engaging teeth 33 `provided 'around one end of the jacket As this jacket is screwed on the extension 9 the rotation of the jacket will result in the feeding ot the extension 9 longitudinally to properly position the rollers within the end of the flue. The sleeve 15 is preferably secured to the mandrel by means of a set screw 34 and the projecting end ot the sleeve is preferably angular as at 35. Thus by rotating the sleeve 15 with a wrench the mandrel and the extension 9 can be ted forward Within the jacket 18 while the acket is held stationary and by applying a wrench to the angular end 17 of the mandrel, the same can be rotated to cause the rollers to rotate about their individual axes. Obviously, therefore, the tube can thus be rolled or expanded and the top shaped rollers 6 will Hange or bead the tube to hold it securely to the sheet F. The bolt 29, when seated in one of the slots or openings 32 will hold the parts aga-inst retro-active movement during the operation of the tool.

It is to be understood that the tool can be used Wherever it is desired to roll and bead boiler tubes and can be made inl dif-l ferent sizes and for use in different positions.

d/Vhen it is desired to remove the tool it is merely necessary to press the handles or grips inwardly to disengage shoulders 2G from the throat or door sheet D whereupon the tool can be withdrawn as will be obvious.

What is claimed is:

1. A tool for rolling boiler tubes including a slotted cage, rollers within the respective slots, a screw threaded extension, a mandrel extending through the extension and cage and engaging the rollers, said mandrelhaving an angular end portion tor engagement by an actuating tool, a sleeve screwed onto the extension for holding the mandrel thereto, a jacket mounted for rotation'on the'sleeve andextension and in threaded engagement with the extension, a latch carried by the jacket for engagementwith a portion of a'boiler to hold the cage in a boiler tube, cooperating means on the jacket and extension for holding them against relative rotation, and means on the jacket for engagement by an actuating tool.

2. A tool for rolling boiler tubes including` a slotted cage, rollers within the respective slots, a screw threaded extension, a rotatable mandrel extending through the e.\ tension and cage and engaging the rollers, a sleeve screwed ontothe extension for holding the mandrel thereto, a jacket mounted Jfor rotation on the sleeve and extension and in engagement-with the extension, means for engagement with ay portion of a boiler to hold the cage in a boiler tube, and cooperating means on the jacket and extension for holding them against relative rotation.

In testimony that I claim the foregoing as my own, T have hereto aixed my signature in the presence of two witnesses.

JOHN P. HUGHES.

Vitnesses:

ETHEL PAUL Goan, WM. E. DE VAULT. 

